Mac: Add new accessibility attributes for textfields (and some for all views).

ui/accessibility/ax_enums.idl

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // These should be kept in sync with third_party/WebKit/public/web/WebAXEnums.h
 // until the Chromium and Blink trees are merged.
 [camel_case_enum_to_string=true] namespace ui {
 
   // For new entries to the following three enums, also add to
   // chrome/common/extensions/api/automation.idl.
@@ skipping 189 matching lines @@
   enum AXState {
     busy,
     checked,
     collapsed,
     default,
     disabled,  // ui/views only
     editable,
     enabled,   // content only
     expanded,
     focusable,
+    focused,

[dmazzoni, 2016/06/29 16:24:10]

We used to have "focused" as a state here, but we got rid of it on purpose
because it was possible for two elements to both report they were focused at the
same time.

It's more foolproof to keep track of which element has focus (in the case of
Views, for example, that's already easy) and compute the
"focused" state dynamically.

[Patti Lor, 2016/06/30 05:29:54]

Oh I see, thank you! Have removed it and used
NativeViewAccessibility::GetFocus() as you advised.

     haspopup,
     horizontal,
     hovered,
     invisible,
     linked,
     multiline,
     multiselectable,
     offscreen,
     pressed,
     protected,
@@ skipping 284 matching lines @@
     swipe_left_3,
     swipe_up_3,
     swipe_right_3,
     swipe_down_3,
     swipe_left_4,
     swipe_up_4,
     swipe_right_4,
     swipe_down_4
   };
 };